Problem 2 a) Show that a(t) = ct is a solution of the Friedmann equations for a completely empty universe (p = p= 0) if k = -1. %3D b) Find expressions for the proper distance dp and the angular diameter distance da as functions redshift z for this model.

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A: The value 146.88 can be written as,

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A: Given: The number is 155.

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A: Given Mass of man m = 176 lb To find  Weight of man in Newtons

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A: Solution:-Given that

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A: Please see the answer in next step

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